Process of making alpha-alkylated acids and derivatives thereof



6 (2) at Fran fort-on-the-Main, Germany,

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MAX mm, 01 BOC'HST-ON-THE-W, AND ADOLF SGHWABZ, OEFB ON-THE-MAIN, GERMANY, ASS IGNORE T0 FABBWERKE VORM. mms'rm LU'CWQ r2; BEUNING, OF HOCHST-ON-THE-MAIN, GERMANY, A CQRPORATION' OF swarm.

i r t PROGES OF MAKING a-ALKYLATED-ACIDS AND nmvarrvus THEME.

No Drawing. 7

To whom it my conceive:

many, residin .-(1) at Hochst-on-the-Main,

have invented certain new and useful Improvements in .a Process of Making a-Alkylated Acids and Derivatives Thereof, of which the following is a specificatlon.

heavy metals upon molecular mixtures of the halogen fatty acid compounds of the formula R R CHIBTCQOH (R-A kyl) (He-H o n) and their derivatives such as esters and nitriles, which may be represented by the general formula 3 H184 v wherein R maybe an alkyl residue and R a carboxyl-, carbonic acid-amide or a cyanresidue and Hlg stands for halogen, wlth halogen alkyls, halogen-free acidsand their compounds can be obtained which com-' pounds represent valuable soporlfics when transformed into their amides. .The process is very surprising in so far as for mo stance by replacing the heavy metals by alkali metals, quite a difierent reaction takes lace (see c. g. Arch. d. Ph. 246,182), where- B owin to the intramolecular separation of hydroialogenic acid, unsaturated bodies are part1 formed whereas the heavy metals used in t is process have exclusively a condensin effect. According to the new proc-' ess it 1s possible to produce substances such as diethylallylacetamide, which has for instance a very great hypnotic. action and could not be produced hitherto in any other way (comp. C. B. 09,- I, 912). Examples of the compounds obtainable are those which 7 may be represented by the general formula 1. {71.5 parts of 'dietylbromacetonitrile,

We have found that by the actionof we claim is: 7

Application filed August M, 1922. Serial Ito. M1387 49:2 parts of 'allylbromide, 225 parts of tolnone and 75 parts of copper powder are boiled for 8 hours while stirring in a reflux condenser. After filtration the toluene is dist lled off and the residue submitted to distlllation under diminished pressure,

whereupon the diethylallylacetonitrile boilressure is ob-' ing at 8384 C. at 10 m/m. tamed. 18 parts of diethyla lylacetonitrile are boiled with 45 parts of powdered caustic alkali and 100 parts of alcohol for 9 hours in a reflux condenser. After distilling'ofi the alcohol, the product is washed until it gives a neutral reaction and distilled. The diethylallylacetamide distils at 155 C. un-' der 10 m/m. pressure as a solidifying oil. The meltin point of the substance crystallize from petroleum ether is 2. 97 parts of oz-bromdiethylacetamide, parts of ethyl bromide and parts of copper powder are treated in a solution of toluene as described in Example 1. The triethylacetamide obtained after the filtration angl distillation of .the toluene melts at 10 Having now described our 1. The process of producing a-alkylated acids and derivatives thereof which consists in causing heavy metals to react upon mixtures of halogen compounds of the general formula wherein may be an alkyl residue and ,R' a carboxyl-, carbonic acid-amide or a cyaninvention what residue, and Hlg stands for halogen-with alkyl halides and transforming the carbonic acids, esters and nitriles thus obtained into the amides.

2. The process of producing a-alkylated mixtures of the halogen compounds of the general formula 'whereizfR may be an alkyl residue and R 4. As a new product the diethyl allyl-aceta carboxylcarbonic acid-am1de-,or a cyanamide of the general formula residue, and H1 stands for halogen-with (C'HOFHO'NH,

. allyl halides dnd transforming the products thus obtained into amides. I ,I t n l '8. As new 1 products the carbonic acidtugs; estimony i we affi-x our slgna amides of the general formula z s Dm MAX UH .R DR. ADOLF SCHWARZ.

Witnesses: 10 R I BASIL E. SAVARD,

wherein meanselkyl and R alljr l. I T. H. Ammnson'. 

